AM28
27.12.2019 •
Mathematics
On this imma get beat if i dont finish it
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Ответ:
answer:
60°
step-by-step explanation:
∠apk=kpa'=a(say)
then∠ apa'=a+a=2a
∠a'pm=∠mpa''=b(say)
∠a'pa''=b+b=2b
∠apa"=∠apa'+a'pa"=2a+2b
2a+2b=120
a+b=60
a+b=x
x=60°
20.
a. 1 a.4
b.360° b.90°,180°,270°,360°
a. 3 a.1
b.120°,360° b.360°
a.1 a.none
b.360° b.360°
a.2 a.2
b.180°,360° b.180°,360°
Ответ:
A = pi * r^2
= pi * (2x^-3)^2
= pi * 2^2 * (x^-3)^2
= pi * 4 * (x^-6)
= 4*pi * x^-6